#ifndef __deffisar_h__
#define __deffisar_h__

/*---------
 * Defines
 *---------*/
#define MSEC 0x1AE	   /* Millisecond */

#define FAN_CONNECTED 1
#define TEMP_CONNECTED 1

#define AD_NRCONNECTED 2

#define EEPROM_WAIT_TIME 20

typedef struct temp_t temp;
typedef struct fan_t fan;

/*---------
 * Structs
 *---------*/

/* Strukt för en temperatursensor */
struct temp_t {
    unsigned short status;
    unsigned short curr_value;
    unsigned short min_value;
    unsigned short max_value;
    unsigned short fan_dep[8];
    /* Mera bra saker som tex kalibreringstabell */
};

/* Strukt för en fläkt */
struct fan_t {
    unsigned short status;
    unsigned short curr_speed;
};


/*------------------
 * Global variables 
 *------------------*/
unsigned short current_ad;
unsigned short step_counter;

unsigned short	    *eprom,
		    *sram,
		    *eeprom,
		    *eeprom_fans,
		    *eeprom_temps,
		    *ad,
		    *vippor,
		    *lcd,
		    *lcd_reg,
		    *adstart;

fan fans[8];
temp temps[8];



/*-----------------------------
 * Prototypes for mem routines 
 *-----------------------------*/

/* Set all global pointers */
void set_ptrs();

/* Set a part of the memory to a desired value */
void memeset(void*, char, unsigned long);



/*-----------------------------
 * Prototypes for lcd routines 
 *-----------------------------*/

/* Check if the LCD is busy */
unsigned short lcd_busy();

/* Initiate LCD */
void lcd_init();

/* Write characters as quickly as possible */
void lcd_write(char *msg, unsigned short len);

/* Write text with delay between characters */
void lcd_write_cool(char *, unsigned short);

/* 1 - right, 0 - left */
void lcd_shift(unsigned short);

/* Write an unsigned short as a hexadecimal value */
void lcd_puthex(char, unsigned short);

/* Write an unsigned short as a decimal value */
void lcd_putdec(char, unsigned short);

/* Same as putdec, but do not specify where to write on the screen */
void lcd_putdec_here(char);

/* Write an unsigned short on the screen */
void lcd_putchar(char, unsigned short);

/* Same as putchar, but do not specify where to write on the screen */
void lcd_putchar_here(char);

/* Set the position of the internal memory pointer of the LCD */ 
void lcd_setpos(unsigned short);

/* Clear the screen */
void lcd_clear();


/*------
 * Wait
 *------*/
/* wait for a short while 430 ~ 1 millisecond */
void wait(unsigned long);

/* wait for milliseconds */
void wait_millisec(unsigned long);



/*---------------------------
  Bra strukt <-> EEPROM saker
  --------------------------- */

/* Läser en fan-strukt från eeprom */
void read_fan(unsigned short);

/* Skriver en fan-strukt i eeprom */
void write_fan(unsigned short);

/* Läser en temp-strukt från eeprom */
void read_temp(unsigned short);

/*Skriver en temp-strukt i eeprom */
void write_temp(unsigned short);

unsigned short eeprom_read(unsigned short*);
void eeprom_write(unsigned short, unsigned short*);

/*-------------------
 * Control functions
 *-------------------*/

/* Enable interrupts */
void _avben();

/* Initiate data structures */
void init_everything();

/* Do one step of the inner control loop, return current motor status */
unsigned short step();

/* Show temp status on the LCD */
void show_tmps();

/* Show fan status on the LCD */
void show_fans();

#endif /* __deffisar_h__ */